FAQ

General

The easiest growing method for inexperienced growers is the CANNA TERRA line. Growing in potting mix (TERRA) is easier than growing in other substrates because you don't have to be very precise in order to get wonderful yield.

CANNA nutrients and additives always have a “Best-before” date on the back of the bottle or can. CANNA guarantees that until this date the quality and effect of the product will be optimal. Conditional to the products stored and handled the right way and not opened yet. The date serves as a quality insurance for CANNA products and it guarantees it's freshness. The length of time for each products has been determined by extended testing over the years.

Our products are still safe for usage after their best-before date has passed, however the product might gradually lose it's effect compared to the high standards we have set to it. Note that they will never become toxic for plants, these are not “expiry” dates. However depending on how the products were handled over that period of time, they may become less effective. The way the product changes after it's best-before date all depends on storage and on the working ingredients within the product.

PH and EC

pH has a great influence on the availability of the different nutrient elements. Therefore be sure the pH is always in the right range. The best availability range in the substrate is from 5.2- up to 6.2.

Additives

We recommend to use PK 13/14 always for one week! CANNA feeding already contains a certain amount of P and K. When the plant is in a certain stage of the flowering stage we can't increase the feed for the plant any more, so we change the PK-ratio by adding PK 13/14 for one week.

Trichoderma (a fungus family) do not kill bacteria. Most Trichoderma protect the plant against harmful fungi. This is because they eat other fungi. They stimulates the root environment so roots can develop better and with more root hairs. As a result the plant gains more vitality.

Medium

There are many different substrates and growing methods, which roughly can be classified into 4 groups. CANNA sells different nutrients specifically developed for these different substrates or methods. The four groups are CANNA TERRA (peat based mixtures), CANNA COCO (coco substrates) and for inert substrates CANNA SUBSTRA (run-to-waste) and CANNA AQUA (for recirculating systems).